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Electrically heated particulate filter using catalyst striping

A particle filter and catalyst coating technology, which is used in the electronic control of exhaust treatment devices, machines/engines, mechanical equipment, etc., and can solve problems such as rapid temperature increase and harmful PF.

Inactive Publication Date: 2011-08-24
GM GLOBAL TECH OPERATIONS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this approach results in a higher than expected temperature excursion, which is detrimental to exhaust system components including PF

Method used

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  • Electrically heated particulate filter using catalyst striping
  • Electrically heated particulate filter using catalyst striping
  • Electrically heated particulate filter using catalyst striping

Examples

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Embodiment Construction

[0018] The following description is merely exemplary in nature and is not intended to limit the invention, application or use. It should be understood that throughout the drawings, like reference numerals indicate like or corresponding parts and features. As used herein, the term "module" refers to an application-specific integrated circuit (ASIC), an electronic circuit, a processor (shared, dedicated, or group) and memory, a combinational logic circuit, and / or other suitable components that provide the described functionality.

[0019] now refer to figure 1 , shows an exemplary automobile 10 including a diesel engine system 11 according to aspects of the present invention. It should be understood that diesel engine system 11 is exemplary only in nature and that the particulate filter regeneration system described herein may find application in various engine systems employing particulate filters. These engine systems may be, but are not limited to, direct injection gasolin...

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PUM

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Abstract

An exhaust system that processes exhaust generated by an engine is provided. The system generally includes a particulate filter (PF) that filters particulates from the exhaust wherein an upstream end of the PF receives exhaust from the engine. A grid of electrically resistive material is applied to an exterior upstream surface of the PF and selectively heats exhaust passing through the grid to initiate combustion of particulates within the PF. A catalyst coating is applied to the PF that increases a temperature of the combustion of the particulates within the PF.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to US Provisional Application No. 60 / 934,988, filed June 15, 2007. The content of the above application is incorporated herein by reference. [0003] Statement of Government Rights [0004] This invention is made pursuant to US Government Contract No. DE-FC-04-03AL67635 with the Department of Energy (DoE). The US Government has certain rights in this invention. technical field [0005] The present invention relates to methods and systems for heating particulate filters (or particulate traps). Background technique [0006] The statements in this section merely provide background information related to the present disclosure and may not constitute prior art. [0007] Diesel engines are generally more efficient than gasoline engines because of the increased compression ratio and higher energy density of diesel fuel. The combustion cycle of the diesel engine produces particles, which a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01N3/027F01N9/00
CPCF01N2510/0682F01N2510/06F01N3/035F01N3/027F01N2510/065F01N3/103Y02A50/20
Inventor E·V·冈策M·J·小帕拉托尔F·阿门特
Owner GM GLOBAL TECH OPERATIONS LLC